so long as israel maintains a siege on gaza. they want it lifted and they want guaranteed backed by the international community that israel will no longer engage and target and kill senior leaders of the palestinian factions here in gaza. they want all of these demands guaranteed by the international community. for its part israel wants to approach it from a different angle. they want a complete cessation of hostilities for 38 hours for so followed by a -- other concerns they have. the challenge for egypt is to try and close that gap as quickly as possible because essentially everyone here feels that they're running out of time. you have the israelis amassed on the border and palestinian factions still firing rockets and caught in the middle are the 19.6 million palestinians living in gaza subject to the attacks from the israeli side. this is the challenge egyptians negotiate with the u.n. officials today including the secretary-general as well as turkey's prime minister and regional leaders participating in these talks. tamron.